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A 113-million-year-old fossilized ant is the oldest ever discovered. The “remarkably well-preserved" hell ant was found in limestone in Brazil. Scientists say it is a member of Haidomyrmecinae - an extinct group that only lived during the Cretaceous period. They had highly specialized, "scythe-like" jaws that they probably used to pin or impale prey, according to a study published in the journal Current Biology. Study author Anderson Lepeco said: “Our team [...]

THURSDAY, April 10, 2025 (HealthDay News) -- Heavy drinkers have an increased risk of developing brain lesions associated with memory and thinking problems, a new study says. Folks who imbibe eight or more alcoholic drinks a week have an increased risk of hyaline arteriolosclerosis, or a thickening and narrowing of the small arteries that feed the brain, researchers reported April 9 in the journal Neurology This condition makes it harder for blood to flow, which can damage the brain over [...]

Drinking eight glasses of wine or pints of beer a week more than doubles the risk of brain damage compared to teetotallers, suggests new research. Boozers who down eight or more alcoholic drinks every week have an increased risk of brain lesions associated with memory and thinking problems, say scientists. They explained that the condition, caused hyaline arteriolosclerosis, causes the small blood vessels to narrow, becoming thick and stiff - making it harder for blood to flow, which can [...]

Weight training helps protect older people from dementia , according to new research. Volunteers with mild cognitive impairment who practiced strength training showed improvements in memory and brain anatomy after six months, say scientists. Weight training has been previously shown to improve strength and muscle mass, reduce body fat, and contribute to well-being and mental health. Now, a new study conducted at the State University of Campinas (UNICAMP) in Brazil suggests it protects [...]

The world’s second-smallest vertebrate has been discovered - a tiny toad living in a Brazilian rainforest.   Researchers say the flea toad measures just 6.95 millimeters in length and can fit on the tip of a finger. The name of the new species, B. dacnis, pays tribute to Project Dacnis, a conservation, research and education NGO that maintains private areas of the Atlantic Rainforest, including the one where the animal was found, in Ubatuba, on the coast of São Paulo [...]

THURSDAY, May 16, 2024 (HealthDay News) -- People with post-traumatic stress disorder (PTSD) face more than triple the odds of bruxism, otherwise known as teeth grinding, a new study finds. The small study of 76 Brazilian adults (38 diagnosed with PTSD and 38 without the condition) found much higher incidence of daytime teeth grinding. “Our study showed that PTSD can be manifested orally, in bruxism and a higher level of pain after a clinical dental examination. This requires joint [...]

Rio de Janeiro (AFP) – In Brazil, where about 16 wild animals become roadkill every second, a computer scientist has come up with a futuristic solution to this everyday problem: using AI to alert drivers to their presence. Direct strikes on the vast South American country's extensive road network are the top threat to numerous species, forced to live in ever-closer proximity with humans. According to the Brazilian Center for Road Ecology (CBEE), some 475 million vertebrate [...]

Some plant species will be “winners” while others will be “losers” as global warming forces them to move uphill, suggests a new study. Researchers examined the current range of more than 7,000 plant species in Brazil's Cerrado savanna. They found that the fate of plant species will depend on where they live: lowland species can move uphill for cooler conditions, but mountain plants have nowhere to go. Dr. Mateus Silva, of the University of Exeter said: [...]

Teenagers glued to their screens for more than three hours a day suffer worse back pain, a new study has revealed. Girls suffer worse than boys, and back pain is also associated with physical inactivity and low academic achievement. The nearness of the screen to the eyes as well as sitting or lying on your stomach while viewing were also risk factors, along with the duration. The team at São Paulo Research Foundation (FAPESP) in Brazil analyzed data from more than 1,600 school [...]